| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] at a [noun sg] | 40 |
|
| 2 | it [verb] at a [noun] | 40 |
|
| 3 | it [verb] at [art] time | 36 |
|
| 4 | it [verb] at [art] time | 36 |
|
| 5 | [pron] [verb] at a time | 31 |
|
| 6 | it [verb] [prep] a time | 15 |
|
| 7 | it [verb] at a time | 11 |
|
| 8 | it [verb] at a time | 11 |
|
